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<h1 id="sec_name">
<span data-if="hdevelop" style="display:inline;">gray_erosion</span><span data-if="c" style="display:none;">gray_erosion</span><span data-if="cpp" style="display:none;">GrayErosion</span><span data-if="dotnet" style="display:none;">GrayErosion</span><span data-if="python" style="display:none;">gray_erosion</span> (算子名称)</h1>
<h2>名称</h2>
<p><code><span data-if="hdevelop" style="display:inline;">gray_erosion</span><span data-if="c" style="display:none;">gray_erosion</span><span data-if="cpp" style="display:none;">GrayErosion</span><span data-if="dotnet" style="display:none;">GrayErosion</span><span data-if="python" style="display:none;">gray_erosion</span></code> — Perform a gray value erosion on an image.</p>
<h2 id="sec_synopsis">参数签名</h2>
<div data-if="hdevelop" style="display:inline;">
<p>
<code><b>gray_erosion</b>(<a href="#Image"><i>Image</i></a>, <a href="#SE"><i>SE</i></a> : <a href="#ImageErosion"><i>ImageErosion</i></a> :  : )</code></p>
</div>
<div data-if="c" style="display:none;">
<p>
<code>Herror <b>gray_erosion</b>(const Hobject <a href="#Image"><i>Image</i></a>, const Hobject <a href="#SE"><i>SE</i></a>, Hobject* <a href="#ImageErosion"><i>ImageErosion</i></a>)</code></p>
<p>
<code>Herror <b>T_gray_erosion</b>(const Hobject <a href="#Image"><i>Image</i></a>, const Hobject <a href="#SE"><i>SE</i></a>, Hobject* <a href="#ImageErosion"><i>ImageErosion</i></a>)</code></p>
</div>
<div data-if="cpp" style="display:none;">
<p>
<code>void <b>GrayErosion</b>(const HObject&amp; <a href="#Image"><i>Image</i></a>, const HObject&amp; <a href="#SE"><i>SE</i></a>, HObject* <a href="#ImageErosion"><i>ImageErosion</i></a>)</code></p>
<p>
<code><a href="HImage.html">HImage</a> <a href="HImage.html">HImage</a>::<b>GrayErosion</b>(const HImage&amp; <a href="#SE"><i>SE</i></a>) const</code></p>
</div>
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<div data-if="dotnet" style="display:none;">
<p>
<code>static void <a href="HOperatorSet.html">HOperatorSet</a>.<b>GrayErosion</b>(<a href="HObject.html">HObject</a> <a href="#Image"><i>image</i></a>, <a href="HObject.html">HObject</a> <a href="#SE"><i>SE</i></a>, out <a href="HObject.html">HObject</a> <a href="#ImageErosion"><i>imageErosion</i></a>)</code></p>
<p>
<code><a href="HImage.html">HImage</a> <a href="HImage.html">HImage</a>.<b>GrayErosion</b>(<a href="HImage.html">HImage</a> <a href="#SE"><i>SE</i></a>)</code></p>
</div>
<div data-if="python" style="display:none;">
<p>
<code>def <b>gray_erosion</b>(<a href="#Image"><i>image</i></a>: HObject, <a href="#SE"><i>se</i></a>: HObject) -&gt; HObject</code></p>
</div>
<h2 id="sec_description">描述</h2>
<p><code><span data-if="hdevelop" style="display:inline">gray_erosion</span><span data-if="c" style="display:none">gray_erosion</span><span data-if="cpp" style="display:none">GrayErosion</span><span data-if="com" style="display:none">GrayErosion</span><span data-if="dotnet" style="display:none">GrayErosion</span><span data-if="python" style="display:none">gray_erosion</span></code> applies a gray value erosion to the input image
<a href="#Image"><i><code><span data-if="hdevelop" style="display:inline">Image</span><span data-if="c" style="display:none">Image</span><span data-if="cpp" style="display:none">Image</span><span data-if="com" style="display:none">Image</span><span data-if="dotnet" style="display:none">image</span><span data-if="python" style="display:none">image</span></code></i></a> with the structuring element <a href="#SE"><i><code><span data-if="hdevelop" style="display:inline">SE</span><span data-if="c" style="display:none">SE</span><span data-if="cpp" style="display:none">SE</span><span data-if="com" style="display:none">SE</span><span data-if="dotnet" style="display:none">SE</span><span data-if="python" style="display:none">se</span></code></i></a>.  The image
type of the structuring element <a href="#SE"><i><code><span data-if="hdevelop" style="display:inline">SE</span><span data-if="c" style="display:none">SE</span><span data-if="cpp" style="display:none">SE</span><span data-if="com" style="display:none">SE</span><span data-if="dotnet" style="display:none">SE</span><span data-if="python" style="display:none">se</span></code></i></a> must match the image
type of the input image <a href="#Image"><i><code><span data-if="hdevelop" style="display:inline">Image</span><span data-if="c" style="display:none">Image</span><span data-if="cpp" style="display:none">Image</span><span data-if="com" style="display:none">Image</span><span data-if="dotnet" style="display:none">image</span><span data-if="python" style="display:none">image</span></code></i></a>.  The gray value erosion of
an image i with a structuring element s at the pixel position
x is defined as:
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Here, S is the domain of the structuring element s (see
<a href="read_gray_se.html"><code><span data-if="hdevelop" style="display:inline">read_gray_se</span><span data-if="c" style="display:none">read_gray_se</span><span data-if="cpp" style="display:none">ReadGraySe</span><span data-if="com" style="display:none">ReadGraySe</span><span data-if="dotnet" style="display:none">ReadGraySe</span><span data-if="python" style="display:none">read_gray_se</span></code></a>).
</p>
<p>The gray value erosion is particularly fast for flat structuring
elements, i.e., structuring elements with a constant gray level
within their domain.</p>
<h2 id="sec_execution">运行信息</h2>
<ul>
  <li>多线程类型:可重入(与非独占操作符并行运行)。</li>
<li>多线程作用域:全局(可以从任何线程调用)。</li>
  
    <li>在元组级别自动并行化。</li>
    <li>在图像通道级别自动并行化。</li>
    <li>Automatically parallelized on internal data level.</li>
  
</ul>
<h2 id="sec_parameters">参数表</h2>
  <div class="par">
<div class="parhead">
<span id="Image" class="parname"><b><code><span data-if="hdevelop" style="display:inline">Image</span><span data-if="c" style="display:none">Image</span><span data-if="cpp" style="display:none">Image</span><span data-if="com" style="display:none">Image</span><span data-if="dotnet" style="display:none">image</span><span data-if="python" style="display:none">image</span></code></b> (input_object)  </span><span>(multichannel-)image(-array) <code>→</code> <span data-if="hdevelop" style="display:inline">object</span><span data-if="dotnet" style="display:none"><a href="HImage.html">HImage</a></span><span data-if="python" style="display:none">HObject</span><span data-if="cpp" style="display:none"><a href="HImage.html">HImage</a></span><span data-if="c" style="display:none">Hobject</span> (byte / uint2 / real)</span>
</div>
<p class="pardesc">Input image.</p>
</div>
  <div class="par">
<div class="parhead">
<span id="SE" class="parname"><b><code><span data-if="hdevelop" style="display:inline">SE</span><span data-if="c" style="display:none">SE</span><span data-if="cpp" style="display:none">SE</span><span data-if="com" style="display:none">SE</span><span data-if="dotnet" style="display:none">SE</span><span data-if="python" style="display:none">se</span></code></b> (input_object)  </span><span>singlechannelimage <code>→</code> <span data-if="hdevelop" style="display:inline">object</span><span data-if="dotnet" style="display:none"><a href="HImage.html">HImage</a></span><span data-if="python" style="display:none">HObject</span><span data-if="cpp" style="display:none"><a href="HImage.html">HImage</a></span><span data-if="c" style="display:none">Hobject</span> (byte / uint2 / real)</span>
</div>
<p class="pardesc">Structuring element.</p>
</div>
  <div class="par">
<div class="parhead">
<span id="ImageErosion" class="parname"><b><code><span data-if="hdevelop" style="display:inline">ImageErosion</span><span data-if="c" style="display:none">ImageErosion</span><span data-if="cpp" style="display:none">ImageErosion</span><span data-if="com" style="display:none">ImageErosion</span><span data-if="dotnet" style="display:none">imageErosion</span><span data-if="python" style="display:none">image_erosion</span></code></b> (output_object)  </span><span>(multichannel-)image(-array) <code>→</code> <span data-if="hdevelop" style="display:inline">object</span><span data-if="dotnet" style="display:none"><a href="HImage.html">HImage</a></span><span data-if="python" style="display:none">HObject</span><span data-if="cpp" style="display:none"><a href="HImage.html">HImage</a></span><span data-if="c" style="display:none">Hobject *</span> (byte / uint2 / real)</span>
</div>
<p class="pardesc">Gray-eroded image.</p>
</div>
<h2 id="sec_result">结果</h2>
<p><code><span data-if="hdevelop" style="display:inline">gray_erosion</span><span data-if="c" style="display:none">gray_erosion</span><span data-if="cpp" style="display:none">GrayErosion</span><span data-if="com" style="display:none">GrayErosion</span><span data-if="dotnet" style="display:none">GrayErosion</span><span data-if="python" style="display:none">gray_erosion</span></code> returns <TT>2</TT> (
      <TT>H_MSG_TRUE</TT>)
     if the structuring element is not
the empty region.  Otherwise, an exception is raised.</p>
<h2 id="sec_predecessors">可能的前置算子</h2>
<p>
<code><a href="read_gray_se.html"><span data-if="hdevelop" style="display:inline">read_gray_se</span><span data-if="c" style="display:none">read_gray_se</span><span data-if="cpp" style="display:none">ReadGraySe</span><span data-if="com" style="display:none">ReadGraySe</span><span data-if="dotnet" style="display:none">ReadGraySe</span><span data-if="python" style="display:none">read_gray_se</span></a></code>, 
<code><a href="gen_disc_se.html"><span data-if="hdevelop" style="display:inline">gen_disc_se</span><span data-if="c" style="display:none">gen_disc_se</span><span data-if="cpp" style="display:none">GenDiscSe</span><span data-if="com" style="display:none">GenDiscSe</span><span data-if="dotnet" style="display:none">GenDiscSe</span><span data-if="python" style="display:none">gen_disc_se</span></a></code>, 
<code><a href="read_image.html"><span data-if="hdevelop" style="display:inline">read_image</span><span data-if="c" style="display:none">read_image</span><span data-if="cpp" style="display:none">ReadImage</span><span data-if="com" style="display:none">ReadImage</span><span data-if="dotnet" style="display:none">ReadImage</span><span data-if="python" style="display:none">read_image</span></a></code>
</p>
<h2 id="sec_successors">可能的后置算子</h2>
<p>
<code><a href="gray_dilation.html"><span data-if="hdevelop" style="display:inline">gray_dilation</span><span data-if="c" style="display:none">gray_dilation</span><span data-if="cpp" style="display:none">GrayDilation</span><span data-if="com" style="display:none">GrayDilation</span><span data-if="dotnet" style="display:none">GrayDilation</span><span data-if="python" style="display:none">gray_dilation</span></a></code>, 
<code><a href="sub_image.html"><span data-if="hdevelop" style="display:inline">sub_image</span><span data-if="c" style="display:none">sub_image</span><span data-if="cpp" style="display:none">SubImage</span><span data-if="com" style="display:none">SubImage</span><span data-if="dotnet" style="display:none">SubImage</span><span data-if="python" style="display:none">sub_image</span></a></code>
</p>
<h2 id="sec_alternatives">可替代算子</h2>
<p>
<code><a href="gray_erosion_rect.html"><span data-if="hdevelop" style="display:inline">gray_erosion_rect</span><span data-if="c" style="display:none">gray_erosion_rect</span><span data-if="cpp" style="display:none">GrayErosionRect</span><span data-if="com" style="display:none">GrayErosionRect</span><span data-if="dotnet" style="display:none">GrayErosionRect</span><span data-if="python" style="display:none">gray_erosion_rect</span></a></code>, 
<code><a href="gray_erosion_shape.html"><span data-if="hdevelop" style="display:inline">gray_erosion_shape</span><span data-if="c" style="display:none">gray_erosion_shape</span><span data-if="cpp" style="display:none">GrayErosionShape</span><span data-if="com" style="display:none">GrayErosionShape</span><span data-if="dotnet" style="display:none">GrayErosionShape</span><span data-if="python" style="display:none">gray_erosion_shape</span></a></code>
</p>
<h2 id="sec_see">参考其它</h2>
<p>
<code><a href="gray_opening.html"><span data-if="hdevelop" style="display:inline">gray_opening</span><span data-if="c" style="display:none">gray_opening</span><span data-if="cpp" style="display:none">GrayOpening</span><span data-if="com" style="display:none">GrayOpening</span><span data-if="dotnet" style="display:none">GrayOpening</span><span data-if="python" style="display:none">gray_opening</span></a></code>, 
<code><a href="gray_closing.html"><span data-if="hdevelop" style="display:inline">gray_closing</span><span data-if="c" style="display:none">gray_closing</span><span data-if="cpp" style="display:none">GrayClosing</span><span data-if="com" style="display:none">GrayClosing</span><span data-if="dotnet" style="display:none">GrayClosing</span><span data-if="python" style="display:none">gray_closing</span></a></code>, 
<code><a href="erosion1.html"><span data-if="hdevelop" style="display:inline">erosion1</span><span data-if="c" style="display:none">erosion1</span><span data-if="cpp" style="display:none">Erosion1</span><span data-if="com" style="display:none">Erosion1</span><span data-if="dotnet" style="display:none">Erosion1</span><span data-if="python" style="display:none">erosion1</span></a></code>, 
<code><a href="gray_skeleton.html"><span data-if="hdevelop" style="display:inline">gray_skeleton</span><span data-if="c" style="display:none">gray_skeleton</span><span data-if="cpp" style="display:none">GraySkeleton</span><span data-if="com" style="display:none">GraySkeleton</span><span data-if="dotnet" style="display:none">GraySkeleton</span><span data-if="python" style="display:none">gray_skeleton</span></a></code>
</p>
<h2 id="sec_module">模块</h2>
<p>
Foundation</p>
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